<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	private $id;
	private $title;
	public function authenticate()
	{
		$member = Member::model()->find("username = '{$this->username}'");
		if(empty($member)){
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		}else if($member->password!==hash('md5',$this->password)){
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		} else {
			$this->errorCode=self::ERROR_NONE;
			$this->setState("title",$member->title);
			$this->id = $member->id;
		}
		return !$this->errorCode;
	}
	
	public function getId(){
		return $this->id;
	}
}